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Softa [21]
3 years ago
6

You earn $10 per hour working as a manager at a grocery store. You are required to work at the grocery store at least 8 hours pe

r week. You also teach music lessons for $15 per hour. You need to earn at least $120 per week, but you do not want to wok more than 20 hours per week.
Write a system of linear inequalities that represents the situation. Use x for hours worked at the grocery store and y for hours teaching music lessons.
Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
8 0
You would have to multiply 120 x 20 then divide by 8. I hope that helps you!
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Solve the system by substitution <br><br> Y= -7x + 6 <br> Y = - 10x<br><br><br> Plz help
snow_tiger [21]

Answer:

(-2, 20)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
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<u>Algebra I</u>

  • Coordinates (x, y)
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Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = -7x + 6

y = -10x

<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em> [1st Equation]:                                                                           -10x = -7x + 6
  2. [Addition Property of Equality] Add 7x on both sides:                                   -3x = 6
  3. [Division Property of Equality] Divide -3 on both sides:                                x = -2

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Substitute in <em>x </em>[2nd Equation]:                                                                         y = -10(-2)
  2. Multiply:                                                                                                             y = 20
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3 years ago
Bob can ride his bike 6.5 miles in 20 minutes what is the rate of speed in miles per hour
vladimir2022 [97]

Answer:

19.5 miles per hour

Step-by-step explanation:

We need to change 20 minutes to hours

1 hours = 60 minutes

20 minutes * 1 hour/60 minutes = 1/3 hour

To find miles per hour we take the miles and divide by hours

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4 years ago
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11111nata11111 [884]

Remark

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Answer:

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Step-by-step explanation:

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